Question 10 (part 2) · LEK · Multiple pregnancy
For a monochorionic-diamniotic pregnancy to develop a fertilized egg cell must divide:
- A. 24 hours after fertilization
- B. 1-2 days after fertilization.
- C. 3 days after fertilization.
- D. 4-7 days after fertilization.
- E. more than 7 days after fertilization.
Hint
The later a monozygotic embryo splits, the more membranes the twins share; which structure has already formed at the blastocyst stage?
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